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<pre class="textdiagram" id="fig54">
+-----------+   +-----------+   +-----------+
|  Client   |   |  Client   |   |  Client   |
+-----------+   +-----------+   +-----------+
|   Retry   |   |   Retry   |   |   Retry   |
+-----------+   +-----------+   +-----------+
|    REQ    |   |    REQ    |   |    REQ    |
\-----------/   \-----------/   \-----------/
      ^               ^               ^
      |               |               |
      \---------------+---------------/
                      |
                      v
                /-----------\
                |  ROUTER   |
                +-----------+
                |    LRU    |
                |   Queue   |
                +-----------+
                |  ROUTER   |
                \-----------/
                      ^
                      |
      /---------------+---------------\
      |               |               |
      v               v               v
/-----------\   /-----------\   /-----------\
|    REQ    |   |    REQ    |   |    REQ    |
+-----------+   +-----------+   +-----------+
|    LRU    |   |    LRU    |   |    LRU    |
|   Worker  |   |   Worker  |   |   Worker  |
+-----------+   +-----------+   +-----------+
</pre>
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